Done all the pre-reqs, including Physics. A's, baby! Also, I will have to pay out of pocket for any additional classes I take, so that's a downer. I can get my employer to pay for the class up front, but if I get into medical school this coming year, you have to still work there for a year after the end of the class or you owe them back, and I wouldn't be staying that long afterwards.
I don't doubt that I'd enjoy it as I've always liked math (though I am pretty out of practice), it's just the reason I listed above. Like I said, if I get into, and decide to matriculate at, a school that requires a second semester of math, I'll do it. Otherwise, it's mostly an unnecessary expense.